I have a 91 Civic Si and up until yesterday the blower motor was working fine. I was driving along and all of a sudden it stopped. I checked the under dash fuse and it was fine. What else could it be? I'm pretty sure it was something electrical and not mechanical, since it just died all of a sudden. Is there a resistor for it? IF so where would it be located?

Smash

 

there is a fuse for the heater?

 

Check the plugs to the heater.

 

Where are the plugs for the heater?

Thanks

 

I need help!! It's cold in NY and I need my heater to work. Any suggestions?

smash

 

here is a pic of the resistor:


pic of the interior fuses:
the one on the bottom right-hand side that says heater motor.



Check for voltage at the blower motor.If voltage is present,
the brushes inside the motor are likely worn out.
Sometimes you can tap the bottom of the motor with like
an extension or a small hammer and it will start running again.

 

Thanks for the pics. The fuse wasn't blown, but I put a new 30 amp in there anyways. The resistor is the black piece with the plug going into it? Could this possibly be my problem? I believe that it is something electrical, because i've had o other problems with the motor. Could a bad fan switch be to blame? Thanks for the help.

Smash

 

 

 

U want my blower motor ??? send me a few dollars for shipping and i will get it out to you, its from a 88 HF thats going to be my summer-only car so ive removed all HVAC stuff

 

Yes,
The resistor is the piece in the middle of the pic with the plug going to it.

If the motor is good,it should work on position #4 as the resistor
is for fan speeds 1,2 and 3...
[When mine went bad it still worked on #3 and 4.]

Check for voltage at the plug with the key on and the fan switch on #4
If voltage is present,most likely the motor is bad..

You can also check the ground using an ohm meter or by connecting
the ground of the motor to the chassis.

 

do you happen to have some more of those pics of the trouble shooting? I think i have a fault thermostat but i don't know. Can you possibly PM them to me, i don't want to thread jack